<?php
	session_start();
	if(isset($_SESSION["antal"])){
		$antal = $_SESSION["antal"];
	}
	else{
		$antal = 0;
	}
	$antal++;
	$_SESSION["antal"] = $antal;
	echo "antal gange; $antal";
	
?>
<form action="session1.php">
   	<input type="submit" />
</form>